Spinal fusion system including spinal fusion device and additional orthopedic hardware

• US 20050065518A1
• Filed: 11/04/2004
• Published: 03/24/2005
• Est. Priority Date: 06/13/1988
• Status: Abandoned Application

• Current Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Original Assignee: Karlin Technology, Inc. (Medtronic Plc)
• Inventors: Michelson, Gary Karlin
• Application Number:
  US10/981,034
• Publication Number:
  US 20050065518A1
• Time in Patent Office: Days
• US Class Current: 623/17.110
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/1757 for the spine
• CPC Class Codes: A61B 17/8888 at its central region
• CPC Class Codes: A61B 2017/0256 for the spine
• CPC Class Codes: A61B 2090/036 abutting on tissue or skin
• CPC Class Codes: A61F 2/30744 End caps, e.g. for closing an endoprosthetic cavity
• CPC Class Codes: A61F 2/442 Intervertebral or spinal discs, e.g. resilient non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455
• CPC Class Codes: A61F 2/446 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/30143 hexagonal
• CPC Class Codes: A61F 2002/30235 tubular, e.g. sleeves
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/30593 hollow
• CPC Class Codes: A61F 2002/30774 internally-threaded
• CPC Class Codes: A61F 2002/30785 parallel
• CPC Class Codes: A61F 2002/30787 inclined obliquely with respect to each other
• CPC Class Codes: A61F 2002/3085 with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
• CPC Class Codes: A61F 2002/448 comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
• CPC Class Codes: A61F 2002/4619 : for extraction
• CPC Class Codes: A61F 2002/4627 : with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4629 : connected to the endoprosthesis or implant via a threaded connection
• CPC Class Codes: A61F 2002/4681 : by applying mechanical shocks, e.g. by hammering
• CPC Class Codes: A61F 2220/0025 : Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2230/0017 : Angular shapes
• CPC Class Codes: A61F 2230/0069 : cylindrical

Abstract

A spinal fusion system including a spinal fusion device is disclosed for insertion between two adjacent vertebrae. Additional orthopedic hardware including at least one threaded member threadably engages the body of the device.

Claims

1. A spinal fusion system comprising:

a spinal fusion device having a body for placement in between the external perimeters of spaced apart vertebral bodies, said body having at least in part a generally cylindrical sidewall with an exterior surface, said cylindrical side wall having a plurality of perforations therethrough, said exterior surface of said cylindrical sidewall being at least in part threaded; and

additional orthopedic hardware comprising at least one threaded member for threadably engaging said body.

2. The spinal fusion system of claim 1, wherein said at least one threaded member of said orthopedic hardware threadably engages at least one end of said body.

3. The spinal fusion system of claim 2, wherein said body has opposite ends, and further comprising an end member for cooperatively engaging at least one of said opposite ends of said body, said end member extending from said body when engaged to said body.

4. The spinal fusion system of claim 3, wherein said end member extending from said body comprises a portion of the length of said spinal device.

5. The spinal fusion system of claim 3, wherein at least one of said opposite ends is configured to threadably engage said end member.

6. The spinal fusion system of claim 3, wherein at least one of said opposite ends is at least in part open.

7. The spinal fusion system of claim 6, wherein said at least one end being at least in part open is adapted to threadably engage said end member.

8. The spinal fusion system of claim 3, wherein said end member is adapted to contact at least one of the spaced apart vertebral bodies.

9. The spinal fusion system of claim 1, wherein said sidewall includes a plurality of said openings therethrough.

10. The spinal fusion system of claim 1, wherein said body has a maximum diameter and a maximum length from one of said opposite ends to the other of said opposite ends, said maximum length being greater than said maximum diameter.

11. The spinal fusion system of claim 1, wherein said thread on said exterior surface is not continuous.

12. The spinal fusion system of claim 1, wherein said thread on said exterior surface has at least one interruption.

13. The spinal fusion system of claim 1, wherein said exterior surface is not threaded between spaced apart portions of said exterior surface that are threaded.

14. The spinal fusion system of claim 1, in combination with bone.

15. The spinal fusion system of claim 14, wherein said bone is loaded in said hollow interior of said spinal device.

16. The spinal fusion system of claim 14, wherein said bone is compressively loaded in said spinal device.

17. The spinal fusion system of claim 1, in combination with a fusion promoting substance other than bone.

18. The spinal fusion system of claim 1, wherein said spinal device comprises a fusion promoting substance.

19. The spinal fusion system of claim 1, wherein said spinal device is treated with a fusion promoting substance.

20. The spinal fusion system of claim 1, in combination with a source of osteogenesis.

21. The spinal fusion system of claim 1, wherein said spinal device comprises an implantation material that is stronger than bone.

22. The spinal fusion system of claim 1, wherein said spinal device comprises an implantation material that comprises a bone ingrowth material.

23. The spinal fusion system of claim 1, in combination with an implantation material that intrinsically participates in the growth of bone through said spinal device.

24. The spinal fusion system of claim 1, wherein said exterior surface is at least in part porous.

25. The spinal fusion system of claim 1, wherein said spinal device comprises an implantation material that is porous.

26. The spinal fusion system of claim 1, wherein said spinal device comprises an ASTM implant quality material.

27. The spinal fusion system of claim 1, wherein said spinal device is an artificial spinal implant.

28. The spinal fusion system of claim 1, wherein said spinal device is an interbody spinal implant.